bailey



Pate July 2g, 1884.

(No Model.)

J. W. BAILEY.

om; GONGBNTRATOR 0R SEPARATOR.

N0.3oz,816.

lhvrTnn FTaTns lmnTnnT @Trina JOHN W. BAILEY, OF DENVER, COLO'RADO.

ORE CONCENTRATOR OR SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 302,816, dated July 29,ll.

Application filed November 2l, 1893.

To all whom, t may concern,.-

Be it known that I, JOHN XV. BAILEY, of Denver, in the county ofArapahoe and State of Colorado, have invented certain Improvements inGre Concentrators or Separators, of which the following is aspecification.

My invention relates to ore concentrators or separators; and it consistsin the improvements described and claimed hereinafter, whereby theseparation of the ore is effected with dispatch, and the ore obtainedwith regularity in different grades.

In the accompanying drawings, Figure l is a plan view of anore-separating apparatus constructed in accordance with my improvements,and adapted to carry my improved method into` effect. Fig. 2 is alongitudinal section of Fig. l, taken on the line -1 2; and Fig. 3 is atransverse section of Fig. 2, taken on the line 34.

Like letters of reference refer to like parts throughout thespecification and several iigures of the drawings.

In carrying` out my invention, I preferably employ a large rectangulartank divided by partitions A B into three compartments, G D E. Theheight of the compartment C is greater than that of either thecompartments D E, the height of the compartment E being less than thatof the compartment D. Longitudinally within the upper portion of thecompartment C is suspended by rods a, Figs. l and 2, atray, F, which isnormally maintained a short distance from the wall b of the tank by anexpanding spring, c, said spring being 'attached to the end b of thetank and to the end d of the tray F. A partition, e, is secured withinthe tray F, parallel with end d of the same, a spacebeing left betweenthe bottom edge of the partition and the bottom ofthe tray. A rod, f, isattached: at the center of the Lipper edge of the partition e, and'passes through an opening therefor in the end b of the tank, and issecured at its eX- tremity to the end of a pendent bar, G, pivotallysecured at any suitable point above the tank. A shaft, g, arrangedbetween the end Z) of the tank and the depending bar G, and

(No model.)

transverse to the length of the tank, carries a cam, h.

The tray F extends along the compartment C and terminates at an openingformed in the partition A, and much larger in dimensions than the end ofthe tray F. At the end ofthe tray F, and to the upper face of the bottomg thereof, is secured a -riflle-bar, II, which is beveled on one edge,t', and projects for a short distance through the opening` inthepartition A into the compartment D.

A flexible partition, j, of rubber cloth or duck, Fig. 3, is secured tothe upper edge of the partition A, to the sides of the tank, to the edgeof the bottom of the tray, and to the sides thereof, thus making aflexible, but water-proof connection between the tank, partition, andtray.

The tray F is provided, near its connection with the rifflebar Il, witha transverse rectangular opening, I, which is covered with a coarsescreen, k, at the bottom, and contains a quantity of coarse shot orsand, E, for apurpose to be describedhereinafter.

A pipe, J, communicates with each of the compartments C D E, 'so as toadmit water thereto, the iiow of the water being regulated by cocks K.

A tray, L, similar to the tray F, is loca-ted i in the upper part of thecompartment D, the end of said tray being attached to the projectingportion of the riffle-board of t-hc tray F, while the other end of saidtray L carries a beveled riffle board, H', which projects through thepartition B, and is secured to one end of a third tray, M, arranged inthe upper part of the compartment E. The other end of the tray M carriesabeveled riflle-board, H2, which projects through the end of the tank.Flexible connections are made between all the trays and the partitionsof the tank, similar to that of the tray F and the partition A. Posts NN are arranged at the end of the tank, so that the end of therifiie-barIl2 is normally in contact therewith. The bottoms of the trays are eachprovided with a series of perforations, Z, at considerable distanceapart.

The water is admitted to the different com- A partments atdifferentpressures, that of the compartment C being the most powerful,and that of the compartment E the least. The pressure of the water inthe compartment C is of such degree that it will be overcome by thegravity of the metal that is to be separated from the stock while in thetray F, the pressure ofthe water in the other compartments,D E, beingdecreased correspondingly with the gravity of the metal sought to beprecipitated while the stock is in the trays L M.

The separating operation is as follows: The stock being fed into thetray F, between the partition e and the end thereof, the shaft g iscaused to slowly revolve by any suitable 'means in the direction of thearrow, Figf 2, causing the cam h on the said shaft g to intermittentlycome in contact with the pivoted depending bar G, thus forcing said baroutward on its pivot, and, by the rod-connection f, moving all threetrays slowly in the directionl in which the shaft g is located, the eX-panding spring c meanwhile becoming` compressed. As the cam 71, passesfrom contact with the depending bar, the compressed spring reacts andquickly throws the trays back into their first position, causing theriffle-board H'I of the tray M to comeviolentlyin contact with the postsN N, thereby imparting a shock to all the trays, and causing the stockto be thrown from between the partition c and end d of the tray F, andpassing under said partition e be spread upon the bottom of said tray.Repeated shocks cause the contents of the tray F to gravitate toward theriffle-board H, the holes Z in the bottom ofthe tray Fpermitting smallstreams of water to flow upward therethrough, and thus prevent the stockfrom packing. As the stock reaches the transverse opening Lthe gravityof the rst grade of ore overcomes the pressure of the water and passesinto the said opening, and, working its way among the shot or sandtherein, finally passes through the interstices of the sieve 7c thereof,and drops `into the bottom of the compartment C. The remainder'of thestock with the ore it contains is floated over the riffle-board H,

and drops into the tray L of the second compartment, D, the current ofthe water therein being only of such force as will enable the same to beovercome by the gravity of the second grade of ore,which works its wayinto the compartment D through asieved opening, I, in the tray L,similar to that in the tray F. What is now left of the stock is floatedover the riffie-board H', and passes onto the tray M,.where theforegoing operationsl are repeated, the

third grade of ore being finally separated,and p the residue stockfioated off. over the riffleboard H2.

From the foregoing description it will be apparent that by myimprovements the ore is effectively separated from the stock andassorted out according to its grade, and that the operations are carriedout with a small eX- penditure of time and power. Moreover, the

ive in operation, simple and durablefin` construction, and easilyworked. What is more, the arrangement of the flexible connections jenables the free longitudinal vibrations of the respective trays, andaffords a water-tight partition between the several compartments, whichit is important to maintain,

An eduction-gate, O, Fig. 3, is located in the bottom of each ofthecompartments C D E, for drawing off the precipitated ore.

It will be seen that the number of compartments may be increased ordiminished proportionately with the number of grades of ore to beseparated.

I do not limit myself to the precise construction shown and described,as the same may be subject to modification and change without departingfrom the essentials of my invention.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. rlhe combination, in an oreconcentrator, of a compartment or tank, awater-pipe communicating therewith, and a pivotally-suspended trayhaving a sieved opening near one end, a riffie-board in close proximitythereto, and devices for imparting a concussive blow to said tray,substantially as set forth.

2. The combination, in an ore-concentrator, of a compartment or tank, awater-pipe communicating therewith, a pivotally-suspended tray having asieved opening near one end, a riffle-board in close proximity theretoand connected to the tray and projecting through a flexible partition,and devices for imparting a concussive blow to said tray, substantiallyas described.

3. The combination, in an ore-concentrator,

of a compartment or tank, a water-pipe com-` municating therewith, and apivotally-suspended tray having a sieved opening containing shot or itsequivalent, ariffle-bar connected to the pivoted tray, and devices foreffecting the movement of the stock across the tray, substantially asset forth.

4. The combination, in an ore-concentrator, of a compartment or tank, awater-pipe communieating therewith, a pivotally-suspended tray having aperforated bottom, a sieved opening near one end thereof, containingshot or its equivalent, a riffie-bar connected to the pivoted tray, anddevices for vibrating the tray, substantially as set forth.

5. The combination, in an ore-concentrator, of a series of compartments,water-pipes communicating with each compartment and supplying waterunder different degrees of pressure, a series of trays arranged in thecompartments and having perforated bottoms, rifie- IIC ednotiongate inits bottom, a Water-pipe oom- In testimony vvhereof I have hereunto setniunioating With the tank, a, tray suspended my hand and seal this 15thday of November, 1o in the tank and provided with a partition A. D.1883.

forming with the end of the tray ahopper for the stock, a sieve in thetray, a. rife-board JOHN WV' BAUJEY' IIL' S] connected to the tray, anddevices for longi- Witnesses: tudinaily vibrating the tray,substantially as L. D. STooKING,

set forth. JAMEs C. STARKWEATHER.

